many time constants (a decimal number) must elapse before a capacitor in a series RC circuit is charged to 34.0% of its equilibrium charge? Number i Units

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter23: Series And Parallel Circuits
Section23.2: Applications Of Circuits
Problem 27PP
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Concept Simulation 20.4 provides background for this problem and gives you the opportunity to verify your answer graphically. How
many time constants (a decimal number) must elapse before a capacitor in a series RC circuit is charged to 34.0% of its equilibrium
charge?
Number
Units
Transcribed Image Text:Concept Simulation 20.4 provides background for this problem and gives you the opportunity to verify your answer graphically. How many time constants (a decimal number) must elapse before a capacitor in a series RC circuit is charged to 34.0% of its equilibrium charge? Number Units
Expert Solution
Step 1

Charge on capacitor at time, t in series RC circuit is given by

Q(t) = Qeq(1-e-tτ) , Qeq is equillibrium charge, τ is time constant and t is time elapsed.

Let the time be t,then Q(t) = 0.34Qeq

 

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